org.eclipse.datatools.sqltools.routineeditor.ui.RoutineEditorImages.java Source code

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Here is the source code for org.eclipse.datatools.sqltools.routineeditor.ui.RoutineEditorImages.java

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/*******************************************************************************
 * Copyright (c) 2000, 2005 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials 
 * are made available under the terms of the Eclipse Public License v1.0
 * which is available at
 * http://www.eclipse.org/legal/epl-v10.html
 * 
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.datatools.sqltools.routineeditor.ui;

import java.net.URL;

import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.resource.ImageRegistry;
import org.eclipse.swt.graphics.Image;

public final class RoutineEditorImages {

    /**
     * Gets the image (.gif file) corresponding to the given key.
     * 
     * @return the requested image, or <code>null</code> if not found
     */
    public static Image getImage(String key) {
        ImageRegistry imageRegistry = RoutineEditorUIActivator.getDefault().getImageRegistry();
        Image image = imageRegistry.get(key);
        if (image == null) {
            ImageDescriptor descriptor = null;
            try {
                URL baseURL = RoutineEditorUIActivator.getDefault().getBundle().getEntry("icons/"); //$NON-NLS-1$
                URL imageURL = new URL(baseURL, key + ".gif"); //$NON-NLS-1$ //$NON-NLS-2$
                descriptor = ImageDescriptor.createFromURL(imageURL);
            } catch (Exception e) {
            }
            if (descriptor != null) {
                imageRegistry.put(key, descriptor);
                image = imageRegistry.get(key);
            }
        }
        return image;
    }

    /**
     * Gets the image descriptor (.gif file) corresponding to the given key.
     * 
     * @return the requested image descriptor, or <code>null</code> if not
     *         found
     */
    public static ImageDescriptor getImageDescriptor(String key) {
        ImageDescriptor descriptor = null;
        Image image = getImage(key);
        if (image != null) {
            descriptor = ImageDescriptor.createFromImage(image);
        }
        return descriptor;
    }

}